<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }" @click="clearSeeion">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加</el-button>
        </el-col>
      </el-row>

      <!-- 表格数据区域 -->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
        <el-table-column label="创建时间" width="150px">
          <template slot-scope="scope">{{ scope.row.add_time | dateFormat }}</template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="goodsTotal"
        background
      ></el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表数据
      goodsList: [],
      // 商品列表总数
      goodsTotal: 0
    };
  },
  methods: {
    clearSeeion() {
      window.sessionStorage.setItem("activePath", "");
    },
    async getGoodsList() {
      const { data: res } = await this.$http.get("goods", {
        params: this.queryInfo
      });

      if (res.meta.status !== 200) {
        return this.$message.error("获取商品列表失败！");
      }
      this.goodsList = res.data.goods;
      this.goodsTotal = res.data.total;
    },
    // 分页每页数据变化函数
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getGoodsList();
    },
    // 分页页码数据变化函数
    handleCurrentChange(newNum) {
      this.queryInfo.pagenum = newNum;
      this.getGoodsList();
    },
    // 删除数据
    async removById(id) {
      const confirmResult = await this.$confirm(
        "即将永久删除该商品，是否继续？",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: 'warning'
        }
      ).catch(err=>err)

      if(confirmResult !== 'confirm'){
        return this.$message.info('已取消删除！')
      }
      const {data:res} = await this.$http.delete(`goods/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error("删除失败！");
      }
      this.$message.success('删除成功！')
      this.getGoodsList()
    },
    // 跳转到添加页面
    goAddpage(){
      this.$router.push('/goods/add')
    }
  },
  created() {
    this.getGoodsList();
  }
};
</script>

<style lang="less" scoped>
</style>